GENERAL MOTORS issued a recall on the C SERIES and K SERIES models

Certain vehicles were built with the polarity of the wiring for the zero adjust brake switch reversed from what was specified. Reversed polarity will cause the contacts of the switch to wear out prematurely. When the contacts wear out they will fail to close when the brake pedal is applied, resulting in the loss of the brake lamps without any warning to the driver. This could result in failure to warn a following driver that the vehicle is braking and could lead to a crash. Correction: Dealers will replace the brake switch and reverse the wiring.